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BOSTON MARATHON 2025

Kelsey Lebuffe

Bib: 26783•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:13/mi
22:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
44:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:07:16
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:29:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:01/mi
1:34:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:02/mi
1:51:29
↑ 66↓ 880.2%
30K· 18.64 mi
7:12/mi
2:13:52
↑ 181↓ 1480.2%
20M
7:09/mi
2:23:35
↑ 64↓ 500.2%
21M
7:33/mi
2:31:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:00/mi
2:36:22
↑ 17↓ 861.7%
23M
7:11/mi
2:45:22
↑ 23↓ 630.6%
24M
7:07/mi
2:52:29
↓ 821.3%
40K· 24.85 mi
7:12/mi
2:58:38
↓ 200.3%
25.2M
7:41/mi
3:01:17
↑ 13↓ 160.2%
Finish· 26.22 mi
6:48/mi
3:08:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:27
Pace7:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:33:46
Pace7:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:0422:257:1322:25
7:13
-
10K
6.21 mi12:00:2644:477:1222:22
7:12
-0:01
15K
9.32 mi12:22:551:07:167:1322:29
7:14
+0:02
20K
12.43 mi12:45:191:29:407:1322:24
7:13
-0:01
Half
13.11 mi12:50:061:34:277:124:47
7:01
-0:12
25K
15.53 mi13:07:081:51:297:1117:02
7:02
+0:01
30K
18.64 mi13:29:312:13:527:1122:23
7:12
+0:10
20M
20.00 mi13:39:142:23:357:119:43
7:09
-0:03
21M
21.00 mi13:46:472:31:087:127:33
7:33
+0:24
35K
21.75 mi13:52:012:36:227:115:14
7:00
-0:33
23M
23.00 mi14:01:012:45:227:119:00
7:11
+0:11
24M
24.00 mi14:08:082:52:297:117:07
7:07
-0:04
40K
24.85 mi14:14:172:58:387:116:09
7:12
+0:05
25.2M
25.20 mi14:16:563:01:177:122:39
7:41
+0:29
Finish
26.22 mi14:23:523:08:137:116:56
6:48
-0:53

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:48 /mi

Average Pace

7:11 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:01

95% of race

Time at Steady Pace

10:12

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:38:0422:257:1322:25
7:13
#9596
10K
6.21 mi12:00:2644:477:1222:22
7:12
#9515
15K
9.32 mi12:22:551:07:167:1322:29
7:14
#9470
20K
12.43 mi12:45:191:29:407:1322:24
7:13
#9127
Half
13.11 mi12:50:061:34:277:124:47
7:01
#9032
25K
15.53 mi13:07:081:51:297:1117:02
7:02
#8482
30K
18.64 mi13:29:312:13:527:1122:23
7:12
#7908
20M
20.00 mi13:39:142:23:357:119:43
7:09
#7604
21M
21.00 mi13:46:472:31:087:127:33
7:33
#7364
35K
21.75 mi13:52:012:36:227:115:14
7:00
#7254
23M
23.00 mi14:01:012:45:227:119:00
7:11
#7042
24M
24.00 mi14:08:082:52:297:117:07
7:07
#6914
40K
24.85 mi14:14:172:58:387:116:09
7:12
#6789
25.2M
25.20 mi14:16:563:01:177:122:39
7:41
#6697
Finish
26.22 mi14:23:523:08:137:116:56
6:48
#6545
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9596162316239438(Top 33%)1618(Top 13%)1618(Top 30%)
10K6.21 mi3.10 mi9515+811582+411582+419485(Top 33%)1590(Top 13%)1590(Top 29%)
15K9.32 mi3.11 mi9470+451585-31585-39438(Top 33%)1618(Top 13%)1618(Top 30%)
20K12.43 mi3.11 mi9127+3431469+1161469+1168292(Top 29%)1224(Top 10%)1224(Top 22%)
Half13.11 mi0.68 mi9032+951432+371432+377715(Top 27%)976(Top 8%)976(Top 18%)
25K15.53 mi2.42 mi8482+5501233+1991233+1996500(Top 23%)724(Top 6%)724(Top 13%)
30K18.64 mi3.11 mi7908+5741073+1601073+1605944(Top 21%)660(Top 5%)660(Top 12%)
20M20.00 mi1.36 mi7604+304992+81992+814962(Top 17%)501(Top 4%)501(Top 9%)
21M21.00 mi1.00 mi7364+240942+50942+504897(Top 17%)588(Top 5%)588(Top 11%)
35K21.75 mi0.75 mi7254+110929+13929+135367(Top 19%)721(Top 6%)721(Top 13%)
23M23.00 mi1.25 mi7042+212901+28901+284827(Top 17%)625(Top 5%)625(Top 11%)
24M24.00 mi1.00 mi6914+128888+13888+135328(Top 19%)829(Top 7%)829(Top 15%)
40K24.85 mi0.85 mi6789+125877+11877+115045(Top 18%)792(Top 6%)792(Top 14%)
25.2M25.20 mi0.35 mi6697+92867+10867+104349(Top 15%)671(Top 5%)671(Top 12%)
Finish26.22 mi1.02 mi6545+152846+21846+214557(Top 16%)712(Top 6%)712(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9438

Females

1618

F18-39

1618

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9485

Females

1590

F18-39

1590

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9438

Females

1618

F18-39

1618

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8292

Females

1224

F18-39

1224

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7715

Females

976

F18-39

976

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

6500

Females

724

F18-39

724

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5944

Females

660

F18-39

660

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4962

Females

501

F18-39

501

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4897

Females

588

F18-39

588

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5367

Females

721

F18-39

721

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4827

Females

625

F18-39

625

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5328

Females

829

F18-39

829

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5045

Females

792

F18-39

792

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4349

Females

671

F18-39

671

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4557

Females

712

F18-39

712

Passing Analysis

Category:
Athletes Passed
3472
Passed By
420
Net Change
+3051
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9596
5K → 10K274192+81#9596#9515
10K → 15K186141+45#9515#9470
15K → 20K37027+343#9470#9127
20K → Half1005+95#9127#9032
Half → 25K5511+550#9032#8482
25K → 30K5784+574#8482#7908
30K → 20M3040+304#7908#7604
20M → 21M2433+240#7604#7364
21M → 35K1111+110#7364#7254
35K → 23M2197+212#7254#7042
23M → 24M14012+128#7042#6914
24M → 40K13813+125#6914#6789
40K → 25.2M975+92#6789#6697
25.2M → Finish1619+152#6697#6545
TOTALS3472420+3051
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing